Ubuntu
openssh package

  1. Bug #136947
  2. Comment #19

Comment 19 for bug 136947

Revision history for this message
Fabien Tassin (fta) wrote :

Got something similar in Lucid.
"error: Failed to allocate internet-domain X11 display socket" on the server (while in debug mode).

further debug showed:

...
debug2: bind port 6679: Cannot assign requested address
debug2: bind port 6680: Cannot assign requested address
debug2: bind port 6681: Cannot assign requested address
...

It had to do with IPv6.
I just had to add -4 to SSHD_OPTS in /etc/default/ssh (on the server) and restart sshd, it's all fine now.